Electric trolley



(No Model.)

J. W. KENEVEL. ELECTRIC TROLLBY.

Patented Apr. 18,1893.

UNITED STATES PATENT OFFICE.

JEANNOT IV. KENEVEL, OF CHICAGO, ILLINOIS.

ELECTRIC TROLLEY.

SPECIFICATION forming part of Letters Patent No. 495,9), dated April 18,1893. Application filed Margh 26, 1892. Serial No. 426,483. (No model.)

To all whom it may concern:

Be it known that I, J EANNOT W. KENEVEL, residing at Chicago, Cookcounty, Illinois, have invented certain new and useful Improvements inElectric Trolleys, of which the following, in connection with thedrawings accompanyin g and forming apart hereof,is a full and completedescription, sufficient to enable those skilled in the art to understandand use the same.

My invention relates to electric trolleys, that is, to pulleys inclosedin a suitable shield or case secured on the end of a rod, mounted on acar and adapted to be brought in contact with an overhead or undergroundwire and form an electric connection therewith, whereby an electriccurrent can be obtained from the wire and conducted to the motors designed to propel the car and thereby actuate the same. In trolleys of thischaracter the pulley thereof coming in contact with the overhead orunderground electric wire and forming the electric connection named isdesigned to roll or trundle on such overhead or underground wire, andsuch pulley so coming in contact with the overhead or underground wireis ordinarily constructed of copper in order to insure the requiredelectric connection; and the object of my invention is to obtain atrolley of the character named wherein the roller or pulley will turnwith less friction than in those heretofore made; and which shallrequire no oiling; and further, to obtain an electric trolley whereofthe copper of the pulley coming in contact with the overhead orunderground wire can be removed without destroyingthe trolleyand can bereplaced with new copper at a comparatively small expense.

In the drawings, Figure 1, is a side elevation of a device embodying myinvention Fig. 2, a side elevation of the device with the easing thereofon the front removed to show the movable parts in the device; Fig. 3, anend elevation; and Fig. 4, a cross-section on line 44 of Fig. 1.

The same letter of reference is used to indicate a given part where morethan one view thereof is shown in the several figures of the drawings.

A, is the rod on the upper end of which the trolley is secured.

B, is the casing of the device having cheek ing axial bearings fifif,respectively, rings G, I

G, serving as journal bearings for the several rollers F, F, F, and thecentral mandrel H around which the rollers F, F, revolve, and with whichthey are in contact. Mandrel H is secured rigidly in casing B by bolt h,and nut It. Around the periphery of mandrel H there is the projectingrib H and around the periphery of each of the rollers F, F, F, there isa groove F corresponding with the projecting rib H, in which groove suchprojecting rib fits; and around the inner face of the bandE formed bythe two parts 6, e, there is the projecting rib E also fitting into thegrooves F, F, F, on rollers F, F, F, respectively. The parts 6, e, fitclosely in the band (I, so as to rotate therewith.

The several parts d, E, F, G, and H, constituting the trolley roller D,are assembled as follows: First, the rollers F, F, F, and mandrel H arefitted together, and the rings G, G, put in place on axial bearings f,f, f, respectively. Then parts 6, e, are brought together over therollers F, F, F, with projecting rib E, in the grooves F, F, F,respectively, and the band cl pressed over them bringing them closelytogether and holding them firmly in p ace. then slipped into casingB,and bolt hinserted in place and firmly bolted by nut h.

The operation of the trolley roller D is: The band 01 and band E turn asone ring on the rollers F, F, F, which together with rings G, G, willrevolve around the rigid mandrel H. The projecting ribs E, and H,fitting into the grooves F, F, F, serve to keep the rings G, G, band E,and band (1 free from sufficient contact to produce objectionablefriction with the cheek plates B, B of easing B. Then the band d hasbecome so worn by contact in the ordinary manner with an electric Wire,as to require removal and the substitution of a The trolley roller Dthus formed is ICO 0 piece band and holding the pieces thereof new bandtherefor, the trolley roller D can be taken from the casing B byremoving bolt h, and such band can then be driven off band E andreplaced by a new one. The purpose of the slots F, F, F, and theprojecting ribs E, H, being, as stated, to prevent side motion of theseveral parts,- it is evident that if a projecting rib is placed on eachof the rollers F, F, F, and corresponding grooves are placed in the bandE and the mandrel H, such projecting ribs and grooves will be theequivalent of the projecting ribs and grooves herein described: andfurther, if the space between the band E and mandrel Hbecompletelyfilled with rollers F, F, F, the rings G, G, forming journal bearingsfor such rollers may be dispensed with. r

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, isl 1. In an electric trolley, the combinationof a casing, a stationary mandrel secured therein, rollers surroundingand rotatable round the mandrel and in contact therewith, a bandcomposed of two pieces each of such pieces constituting the segment of aring and such two-piece band surrounding and rotatable round the rollersand incontact therewith, and a metallic baud surrounding such twofirmlyin position, there being intermeshing projecting ribs and groovesextending around the mandrel, the rollers in contact therewith and theinner surface of the two-piece band, respectively, thereby holding them,respectively, in position laterally; substantially as described.

2. In an electric trolley, the combination of a casing, a stationarymandrel secured therein, rollers surrounding and rotatable round themandrel, and in contact therewith, rings in which the axial bearings ofthe rollers are j ournaled, a band composed of two pieces each of suchpieces constituting the segment of a ring and such two-piece bandsurrounding and rotatable round the rollers and in contact therewith,and a metallic band surrrounding the two-piece band and holding thepieces thereof firmly in position, there being intermeshingprojectingribs and grooves extending around the mandrel, the rollersincontact therewith and the inner surface of the twopiece band,respectively, whereby such mandrel, rollers and the two-piece band areheld in place laterally; substantially as described.

J EANNOT W. KENEVEL.

In presence of CHARLES TURNER BROWN, KATIE A. HARGADEN.

